2266778666727 has 6 divisors (see below), whose sum is σ = 3274235851952. Its totient is φ = 1511185777812.

The previous prime is 2266778666689. The next prime is 2266778666729. The reversal of 2266778666727 is 7276668776622.

2266778666727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2266778666727 - 2³⁵ = 2232418928359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266778666729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125932148143 + ... + 125932148160.

Almost surely, 2^{2266778666727} is an apocalyptic number.

2266778666727 is a deficient number, since it is larger than the sum of its proper divisors (1007457185225).

2266778666727 is a wasteful number, since it uses less digits than its factorization.

2266778666727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251864296309 (or 251864296306 counting only the distinct ones).

The product of its digits is 1194891264, while the sum is 72.

The spelling of 2266778666727 in words is "two trillion, two hundred sixty-six billion, seven hundred seventy-eight million, six hundred sixty-six thousand, seven hundred twenty-seven".